Changing up the workouts

Australia Day long weekend was last week and since that break I have not been motivated to work out.
I went to gym yesterday morning for cardio and then Zumba in the evening.
This morning I was exhausted and didn't get up until 8:30am!
When I don't start off my day with a workout, I get extra lazy.
I had to push myself this evening to get active.
I've had the Biggest Loser challenge game for wii for a few years now. I popped it on and did a 45 minute full body workout am exhausted!!! It's like having a personal trainer in my TV. It's an excellent program!

What's your favourite at home workout?